How is the relationship between rotational speed and torque in a 36mm planetary gear motor?

In mechanical motion, rotational speed and torque are two basic physical quantities. When using a 36mm planetary gearmotor, understanding the relationship between them is necessary for its proper use. In this article, we will discuss the relationship between the rotational speed and torque of 36mm planetary geared motors and explore how to properly select and use such motors.

A 36mm planetary gearmotor is a common type of motor that usually consists of a motor and a planetary reducer. The Planetary Gearbox is a combination of a planetary gear, a sun gear and an internal gear. The system consists of multiple planetary gears rotating around the sun gear connecting the output shaft to the internal gear, which reduces the speed of the output shaft while increasing the torque.

Before discussing the relationship between the rotational speed and torque of a 36mm Planetary Gear Motor, we need to define them.

- RPM is the number of revolutions per minute of a rotating object. It is usually expressed in units of rpm (revolutions per minute).

- Torque is the moment of force exerted on an object. It is usually expressed in units of N-m (Nm).

These two concepts are very important when using a 36mm planetary gear motor. We need to know how to choose the right motor to achieve a certain speed and torque.

In 36mm planetary geared motors, there is an inverse relationship between rotational speed and torque, i.e. the lower the rotational speed, the higher the torque. This is due to the presence of the speed reducer, the planetary reducer reduces the speed of the output shaft and increases the torque at the same time. As a result, the torque of the output shaft will increase as the reduction ratio increases, while the rotational speed will decrease as the reduction ratio increases.

Specifically, the relationship between torque and speed of the motor can be expressed by the following equation:

T = (9550 x P) / N

Where T represents torque, P represents power, and N represents speed. Based on this formula, we can see that torque will increase as the speed of the motor decreases.

When choosing a 36mm planetary gearmotor, we need to select the correct motor based on the required workload. If the output torque of the motor is too small, it will not be able to provide enough torque to push the load, and if the output torque is too large, the motor will be overloaded, resulting in damage to the motor.

We need to determine the required reduction ratio and output torque. Based on our previous formula, we can calculate the correct motor power and speed. Then, when selecting a motor, we need to pay attention to the following points:

- Proper rated power and speed

- Correct voltage and frequency

- Proper diameter and length of output shaft

- Appropriate type of load and working environment

Correctly selecting a 36mm planetary gear motor can effectively improve the service life and efficiency of the motor, as well as ensure that it can successfully drive the required load.

In addition to the correct selection of the motor, we also need to pay attention to the following points:

- Avoid short-term overloading and reversing

- Regularly check the working condition and lubrication of the motor

- Observe proper installation and use procedures

- Avoid prolonged continuous operation to avoid overheating of the motor

In 36mm planetary geared motors, there is an inverse relationship between speed and torque, as the reduction reduces the speed of the output shaft while increasing the torque. In order to select the correct motor, it is necessary to determine the required reduction ratio and output torque, and pay attention to factors such as the motor's power rating, voltage and frequency, output shaft diameter and length, load type, and operating environment. Proper selection and use of a 36mm planetary gearmotor will increase its efficiency and service life and effectively drive the required load.

[1] How to Choose 36mm Geared Motor? https://www.zwgearbox.com/how-to-choose-36mm-geared-motor.html

[2] Calculation of torque and rpm of a motor. https://electricalacademia.com/electric-motor/calculation-torque-rpm-motor/

[3] Planetary Gear Motor: All You Need To Know In 2020. https://dzindzibao.medium.com/planetary-gear-motor-all-you-need-to-know-in-2020-67f57e335a8c